XML 17 R34.htm IDEA: XBRL DOCUMENT v3.19.3.a.u2
Investments (Tables)
 12 Months Ended
Dec. 31, 2019
Investments, Debt and Equity Securities [Abstract]  
Schedule of Available-for-sale Securities
Investments in available-for-sale debt securities at fair value were as follows for the periods ended (in thousands):
 
 December 31, 2019December 31, 2018
Description of the Securities
Amortized
Cost
Gross
Unrealized
Gains
Gross
Unrealized
Losses
Fair Value
Amortized
Cost
Gross
Unrealized
Gains
Gross
Unrealized
Losses
Fair Value
Agency securities$1,681  $1  $—  $1,682  $314,982  $333  $(2,367) $312,948  
Corporate securities49,027  6  (149) 48,884  612,698  116  (4,156) 608,658  
Municipal securities—  —  —  —  2,500  4  —  2,504  
Government securities9,124  5  —  9,129  234,668  91  (935) 233,824  
Total$59,832  $12  $(149) $59,695  $1,164,848  $544  $(7,458) $1,157,934